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Lenovo ThinkStation P620 tower workstation in matte black finish

Lenovo

Lenovo ThinkStation P620 Threadripper PRO 3945WX 4.0GHz 256GB RTX A4000 1TB NVMe 2x2TB SATA desktop PC

SKU CH-87R7-M62FX

Professional workstation with 12-core Threadripper PRO processor, 256GB DDR4 ECC memory, RTX A4000 graphics and 5TB total SSD storage for CAD and 3D rendering

  • Memory size256 GB
  • Storage drive1x 1 TB SSD M.2, 2x 2 TB SSD
  • GPURTX A4000
  • RAM capacity256 GB
  • SSD storage5 TB
  • Operating systemWindows 11 Pro
  • Threadripper PRO 3945WX 12-core CPU powers heavy rendering and simulation workloads
  • 256GB DDR4 ECC memory handles massive datasets and virtual machines smoothly
  • RTX A4000 professional GPU accelerates CAD, 3D visualization and GPU-enabled creative apps
  • 1TB NVMe plus 2x 2TB SATA SSDs deliver fast boot and ample project storage
  • 1000W supply supports multi-GPU expansion and future storage upgrades

Professional CAD Workstation

The Lenovo ThinkStation P620 is a tower workstation built for CAD, 3D modelling, rendering and engineering workflows. It runs on an AMD Ryzen Threadripper PRO 3945WX processor with 12 cores and 24 threads at a 4.0 GHz base frequency. The system includes 256 GB of DDR4 ECC memory and an NVIDIA RTX A4000 graphics card for GPU-accelerated professional applications.

Straightforward Tower Deployment

The tower form factor fits standard rack or desk spaces and uses a 1000 W power supply to support the installed components. Windows 11 Pro is pre-installed and ready for immediate domain joining or remote desktop setup. The 8-channel memory architecture uses 8 DIMM slots; verifying that all slots are populated correctly avoids boot issues. Two built-in PCIe Gen 4 NVMe M.2 slots allow storage expansion without adapter cards.

Ideal for Multi-threaded Production

This configuration suits professionals who need high core counts, large ECC memory capacity and certified drivers for CAD, simulation and content creation. Buyers who want more storage than the 1 TB NVMe plus 2x 2 TB SATA array should plan additional drives. Teams requiring a different GPU tier or a smaller chassis should evaluate alternative workstation models.

How it compares

Measured against everything we stock in Tower & Compact Desktop PCs, at today’s prices. Recalculated every night.

Price $2,780.99
Pricier than about 91% of the 14,711 comparable items (median $494.99).
Memory size 256 GB
Higher than about 99% of the 5,840 comparable items (median 16 GB).
RAM capacity 256 GB
Higher than about 92% of the 13,125 comparable items (median 16 GB).

Specifications

Product
Brand nameLenovo
Product lineThinkStation
Model nameP620
Product typeBusiness Desktops & Workstations
Recommended useWorkstation
Processor
Base clock speed4 GHz
Memory
Memory size256 GB
RAM capacity256 GB
Total memory slots8
Max supported RAM1 TB
Storage
Storage drive1x 1 TB SSD M.2, 2x 2 TB SSD
SSD storage5 TB
Hard driveNo
Graphics
GPURTX A4000
GPU modelRTX A4000
Ports & slots
Front USB ports4
Front audio jacks1
Rear USB ports6
Ethernet port1 port
Rear audio jacks3 ports
Power
Power supply1000 W
Size & build
Form factorTower
Compatibility
Windows 11 supportReady
Software
Operating systemWindows 11 Pro

Questions about this item

How can I confirm the Threadripper PRO 3945WX is running at its 4.0 GHz base and 4.30 GHz boost after setup?

Open Task Manager or HWMonitor to verify the CPU reports 12 cores, 24 threads, 4.0 GHz base clock and 4.30 GHz boost under load.

What accessories are included and which must be purchased separately?

The workstation includes power cord, keyboard and mouse; monitors, specialised 3D mice or additional PCIe cards are not supplied.

Which memory configuration suits large assemblies — the installed 256 GB or the maximum 1 TB?

256 GB across 8 DDR4 ECC RDIMM slots handles most CAD projects; upgrade toward 1 TB only if you run massive simulations or many virtual machines.

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